The position of the umbral shadow path across North America has been accurately determined by our team member John Irwin. Most notably, this path incorporates adjustments that account for the topographic elevation, both around the limb of the Moon and on the surface of the Earth. It therefore provides a reliable guide for intrepid observers who may wish to venture close to the path limits and witness prolonged, and potentially profound, edge effects around the time of maximum eclipse (weather-permitting).

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